Injector Height Adjustment Gauge Tool For Caterpillar 3406E C-15 C-16 9U-7227 Features: 1. For Caterpillar 3406E, C-15 and C-16 2. Replacement part number: 9U-7227 3. Designed to easily and accurately adjust the height of engine injectors. 4. Made of high quality material for durability and extreme resistance to wear and tear. 5. For optimum performance and economy, injector height should be properly maintained. 6. Note: The product only includes 1*Injector Height Adjust Tool, not including other items shown with it, please make sure you are aware of it before placing an order! Thank you for your purchase! Package Includes: 1*Injector Height Adjust Tool Note: 1. Please allow 1-3mm error due to manual measurement. Please make sure you don't mind before ordering. 2. Please allow 1-3g weight error. Please make sure you don't mind before ordering. 3. Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please make sure you don't mind before ordering, thank you!